Apparatus for lowering and raising ships&#39; boats



Aug. 21, 1923. 1,465.78?

H. W. BROADY APPARATUS F'OR LOWERING AND RAISING SHIPS BOATS Filed June- 28, 1920 2 Sheets-Sheet l H. W. BROADY APPARATUS FOR LOWERING AND RAISING SHIPS BOATS I Filed June 28. 1920 2 Shwts-$hee z Patented Aug. 21, 1923.

sr fi r inst" riiiitavw. BnoADY, oniaaYsriin. NEW YORK, assienoit To AIiIERIGiAN EALSA COMPANYINC A CORPORATION OF NEvV YORK.

AIPARA'IUS non nownniiieniin :eiiisiive SHIPS BOATS.

7 Application filed J 'une 28,

ingdavits of the quadrant type or of atype T having a segment at its lower end less inextent than a quadrant, to dispose the entire toothed segment on the outboard sideot a line passing through the longitudinal axis of the davit arm .and to suspend a boat in a plane substantially parallel to the said axis of the davit arm; and this has made it necessary in the case of the manipulation of heavy boats to support such boat on tilting chocks, such as shown and described in my former Patent #1,118,527; and one of the objects of this invention is so to dispose the toothed segment of a davit of quadrant or'less extent in' such relationship to the axial line of the arm as to cause the davit to be movedto different degrees of inclination on opposite sides of the vertical or perpendicular and also so to suspend the boatto be manipulated that the first movement of the davit arm toward-the vertical or perpendicular to the deck will cause a raisingof the boat as well as a swinging out thereof and will thus obviate the necessity of tilting ehocks and like devices while still retaining the 'economi-' cal and compact construction of davits such as the quadrant type or of less extent'than a quadrant. v

Another object of my invention is toprovide, in combination with a davit, andpreferably in combin tion with a davit of the differentially inclined quadrant type above referred to, an arrangement of fallsin which the outboard movement of the davit will cause a pull or drawing of the opposite ends of the ropes by whichthe boat is suspended 5 from the davits over the pulleys carried the davit; and to this end, instead of attaehing one end of a boat suspending rope to one. of the pulleys carried by the davit,- I pref; erably provide the upper block of the tackle with an additional or extra pulley and pass Eli 1920. Serial No. 392,184.

that end of the rope which was usually connectedto the block over this extra pulley and then lead the same inboard where it is fasthe opposite end of the rope being also led inboard and fastened in any suitable manner during the movement of the davitfrom in-' board tooutboard position. One end of such rope is preferably permanently anchored inboard in any suitablefixed position and the other end is preferably detachably fastened in the usual manner so as to permit the lowering of the boat thereby.

'tened or anchored in any suitable manner,

With these and other objects-in'view, the

invention comprises the combination of members and arrangement of parts so combined as to co-act andcooperate with each other'in the performance of the functions and the accomplishment of the results herein contemplated, and comprises mom of its adaptations the species or preferred form illustrated in the accompanying drawings in which:

Fig. 1 is a side elevation of a davit at one end of a boat embodying my improvements in the davit and in the arrangement of the falls; and

Fig. 2 is an elevation from the-inboard end of the davit and falls shown in Fig; 1. 'Referring now to these drawings, 1 indi- I cates the davit having its lower end 2 in the form of a toothed segment or a segment of less extent than a quadrant. 1 7

As illustrated in Fig. 1 the toothed segment 2, the teeth of which are adapted to board of the longitudinal axisof the arm 1 for-the major portion of its length and ex- .tends inboard of the said axis of the arm a lesser distance, so that the said arm in its -movenients inboard and outboard on the rack 3 may be inclined in opposite directions from the vertical but such incline will be a much less and difi'erent degree of-inboard inclination than the outboard inclination thereof. r 7

mesh with those of a rack 3, extends outdavit 1 being pivotally connected to the nut and sleeve 8 as indicated at 9, the center 1,465,787 i a f boats and pivoting of the davit, a rack on which said segment may roll, means for moving the davit arm to opposite sides of the vertical and means for suspending a boat from said davit arm comprising an upper and a lower block carried by the davit, one of which has a greater number of pulleys than the other and a boat-suspending rope arranged to cause a pulling or drawing 01": the oppositevends of said rope over the pulleys in said blocks carried by the davit as the said davit is moved from its inboard position on one side of the vertical to its outboard position on the opposite side thereof.

5. In apparatus for raising and lowering boats, in combination, a davit arm, a movv name to the foregolng speclficatlon, 1n the able pivot about which the davit may turn, a toothed segment on the lower end of the davit arm of quadrant or lesser extent, and having the said segment extending for a major portion of its length outboard ofa plane passing through the points of suspension of the boat and pivoting of the davit and a minor portion of substantial extent extending inboard of said plane, a rack on which said segment may roll and'means for moving the davit arm outboard from the. vertical position thereof and means for suspending a boat from the top of said 'davit comprising an upper and a lower block carried by the davit, one of which has a' greater number of pulleys than the. other and a boat-suspending rope arranged to cause a pulllng or drawing of the opposite endsof said rope over the pulleys in said blocks carried by the davit as the said davit is moved from its inboard'position on one sideof the vertical to its outboard position on the opposite side-thereof. 1

In witness whereof, I have signed my Witnesses CHARLES J. GALE, .HE-LEN V. WHIDDEN. 

